Best Alien movies that are oscar winners or nominees

Actors : Arthur Hill, James Olson, David Wayne, Kate Reid,
Directors : Robert Wise,

A group of scientists investigate a deadly new alien virus before it can spread.

Actors : Will Smith, Bill Pullman, Mary McDonnell, Jeff Goldblum,
Directors : Roland Emmerich,

The aliens are coming and their goal is to invade and destroy Earth. Fighting superior technology, mankind's best weapon is the will to survive.

Actors : Jerry Lewis, Joan Blackman, Fred Clark, Earl Holliman,
Directors : Norman Taurog,

The weirdest alien of the galaxy pays a visit to Earth...